Gas-saving and carbon-eliminating attachment for automobile gas engines



June 5, 11%23. HA57T J.H.ZURBORG GAS SAVING AND CARBON ELIMINATINGATTACHMENT FOR AUTOMOBILE GAS ENGINES Filed Sept. 1, 1920 2 Sheets-Sheetl June5,1923. msmm J. H. ZURBORG GAS SAVING AND CARBON ELIMINATINGATTACHMENT FOR AUTOMOBILE GASEENGINEs' Filed Sept. 1, 1920 2 sh eets-sheetfid mf w ax.

Patented dune E, 3923.

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UNHTEK) stares rarest @FFHE? JOHN HENRY ZURBORG, OF GOVING'ION,KENTUCKY, ASSIGNOR OF ONE-HALF TO JEROME G. WILDE, OF COVING-TON,KENTUCKY.

GAS-SAVING AND CARBON-ELIMINATENG ATTACHMENT FOR AUTOMOBILE GAS ENGINES.

Application filed September 1, 1920. Serial No. 407,421

To all whom it may concern.

, Be it known that 1, JOHN HENRY ZUR- nons, a citizen of the UnitedStates, residing at Covington, in the county of Kentonand State ofKentucky,have invented certain new and useful Improvements in.

Gas Saving and Carbon Eliminating Attachments for Automobile GasEngines, of which the following is a specification.

My invention relates to novel means for withdrawing the exhausted gases,hot air and unconsumed products of combustion from the engine exhaustmanifold directly to the intake manifold by means of a tube or pipehaving a stop-cock therein. I

The object of my invention is to provide a simple, convenient andeconomical attachment adapted to be readily and easily applied to themachine by a mechanically unskilled person and to provide efficientmeans whereby the mileage for each gallon of gasoline is greatlyincreased, and whereby carbon is eliminated from the cylinders.

My invention consists in the novel combination and arrangement of parts,and in the simple and convenient means for attaching it in position foruse as herein set forth and claimed.

In the drawings:

Fig. 1 is a perspective view of a gas engine with my gas-saving andcarbon-eliminating attachment mounted thereon;

Fig. 2 is an elevation partly in section of my attachment and enginecylinder to which it is connected; T

Fig. 3 is a plan view of the engine showing the position of theattachment when connected;

Fig. 4: is an elevation from the rear show- 4.0 ing connection ofattachment and position of the priming cup; and

Fig. 5 ma perspective view of the collar located between the engine andexhaust, showing threaded hole into which the attachment is screwed.

In the embodiment of my invention as illustrated and which shows apreferred construction, a collar 1 is inserted between carbureter 2 andthe lower end of intake-mani-' fold 3 to both of which it is attached.Said collar is provided with a threaded opening 4 in which the lower endof connecting tube 5 is screwed. Connecting tube 5 extends upwardly andlaterally over exhaust-manifold 6 where it connects with branch tubes 7and 8 leading downwardly into insert connec tions 9. These insertconnections are illustrated in Fig. 5 and are provided upon one endwith. an annular recess 11 to receive gland 12 inserted in engine casing13, a gasket 14 being interposed between said insert connections, andthe engine casing to form a tight joint. The other end of said insertconnections are each provided with an annular flange 15 to enter annularrecess 16 in exhaust-manifold 6. Insert connect-ions 1O exactly likeinsert connections 9, except that they are not provided with threadedopenings 9, are inserted between engine casing 18 and exhaust-manifold 6for the purpose of establishing suitable connections between said casingand manifold when my attachment is applied.

Connecting tube 5 is provided with stopcock 17 by which hot exhaust gasfrom the exhaust-manifold to the intake manifold is controlled. Saidstop-cock is preferably provided with rod 18 arranged in convenientposition for the driver and provided with handle 19 by which it isoperated to turn on or ofi the supply of exhaust gas from theexhaust-manifold or to control the supply thereof to the intakemanifold, as may be desired. A priming cup20 is mounted at the upper endof connectingtube 5 into which a small quantity of gasoline may bepoured for the purpose of starting the engine when it is cold, and asuitable stop-cock 21 is provided for closingofi the priming cup whennot in use.

When it is desired to equip an engine with my attachment, the parts ofwhich are assembled as shown in Fig. 2, simply disconnect carbure-ter 2and the lower end of intake-manifold 3 and also disconnectexhaust-manifold 6 from engine casing 13 and insert collar 1 betweensaid carbureter and intake-manifold, as shown in Fig. 1, and insertconnections 9 and 10 between exhaustmanifold 6 and engine casing- 13, asclearly shown in Figs. 2 and 3. The engine thus equipped is then readyfor use and, since no tapping of the engine or other parts is required,the attachment can be readily, conveniently and quickly applied by anyperson though mechanically unskilled. Furthermore, my inventionprovides'an attachment which prevents the possibility, of damaging theengine casing, exhaust-manifold or intake-manifold by one Who is notskilled in attempting to apply it to said parts by tapping therein.

An advantage of this attachment over others is that the heated exhaustgas is conducted directly to the intake inanifold thereby causing betterdistribution and mixing of the fresh and exhaust gas and unconsumed vproducts of combustion' Iclaimz 1. In an autoinobile gasenginey'anengins-casing, an exhaust-manifold, a carbureter, anntake-manifold, a tubular connection having acollar at one end adaptedtobe detachably inserte'dbetween and connect;-

"ed to the carbureter and intake manifold an intake manifold, an insertconnection an automobile gas engine, an engine comprising a short tubehaving a threaded side opening therein, said tube' also having upon oneend thereof an annular flange and upon its otherend an annulai-recessadapted to form connection With the engine casing andexhaust manifold,respectively, and a tubular connection detachably. mounted at oneendbetween said carhureter and said intake manifold and attachable atthe other end to saidvinsertnconnection, substantially asset forth andfor the purposes specified.

- JOHN HENRY 'ZURBOR-G.

